The review from GUANGRONG ZENG under "Top Reviews from Other Countries" saved me. I made the mistake of buying the Orbi router/modem (CBR750) with no satellites, thinking my apartment was so small I wouldn't need a satellite. Big mistake, the wifi signal from the router in the living room did not reach the bedrooms in the back of the apartment. So I purchased the Orbi stand-alone satellite (RBS750). The instructions for syncing the satellite to the router/modem did not work at all (plugging the satellite in to an outlet and then pushing the sync buttons on the satellite and router). I kept getting the magenta light.So I followed the instructions from GUANGRONG ZENG (who got them from another reviewer). The only change I had to make, was that I found the specific IP address of my satellite in the Orbi app after I had connected the satellite via ethernet. I then entered Admin and Password as the username and password. It then took me to the page in the first image. Next step was update the firmware. I found my router's firmware version in the orbi app under router settings. Then I kept uploading the wrong file (CBR750 instead of RBS750). Once I get the right file uploaded, the firmware updated. See the second image. Then I refreshed and saw the third image. I then refreshed the Orbi app, and instead of saying "Satellites: 0 of 1," it now said "Satellites: 1 of 1." I have copied the original review below so that people can see all of the steps.Can not syn my new satellite for 2 hours, After review and tried C&J review, my system work great now, thank you for the help, i repost his post. credit to him. anyone having this problem, follow the step and give this a shot, thank you.5.0 out of 5 stars Advanced setup may be required.Reviewed in the United States on October 21, 2023Verified PurchaseI've had good luck with my Orbi 750 system but wanted to expand the coverage with this satellite. I spent over 2 hours trying to get this to sync with my system with no luck. This is what I ended up having to do, and I’d assume this will work for whomever runs into this issue.• Start by plugging the new satellite into the Orbi router with an Ethernet cable. Plug the new satellite into power and wait for it to boot up (usually 2 minutes).• Wait for the light on the satellite to turn blue and then turn off.• At this point open a web browser and log into the Orbis interface (192.168.1.1) enter your username and password when prompted, then select attached devices and find the IP address of the new satellite.• Once you've located the new satellites IP address open a new tab and enter the new satellites IP address into the address bar and login (Username:admin/password:password).• Once you've logged into the new satellites web interface look for the firmware version and compare it to your existing Orbi firmware. If it doesn't match you need to manually update the new satellite firmware.• Open a new tab and search RBS750 firmware. Find the firmware version that matches your current system from the Netgear support site only (not 3rd party).• Once you've located the correct firmware download it to your desktop. When it's finished downloading extract the zip file to your desktop. The firmware file will end with .chk . Now go back to the browser tab for the new satellite and select firmware/update Firmware then select browse and navigate to the unzipped folder you downloaded and select the file ending .chk and update. This process can take up to 19 minutes.• Once the satellite is finished and there is no light coming from the new satellite unplug it from your router and place where you want it and plug it back into power.• After the light on the new satellite finishes blinking it should go blue for a moment then off. If the placement is poor you may get an amber light instead of blue and magenta if it's too far from the Orbi router.• This is how I got mine to work, I hope this helps someone in the same situation. After all this it works great for me.